28906860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{20947}}^1$

素因数の和:20982

約数の個数: 48

約数和(自身を含む): 84462336

約数和(自身を除く): 55555476

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 1380, 20947, 41894, 62841, 83788, 104735, 125682, 209470, 251364, 314205, 418940, 481781, 628410, 963562, 1256820, 1445343, 1927124, 2408905, 2890686, 4817810, 5781372, 7226715, 9635620, 14453430, 28906860]

約数ペア:

[(1, 28906860), (2, 14453430), (3, 9635620), (4, 7226715), (5, 5781372), (6, 4817810), (10, 2890686), (12, 2408905), (15, 1927124), (20, 1445343), (23, 1256820), (30, 963562), (46, 628410), (60, 481781), (69, 418940), (92, 314205), (115, 251364), (138, 209470), (230, 125682), (276, 104735), (345, 83788), (460, 62841), (690, 41894), (1380, 20947)]